Segment Reporting (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenue From External Sources									$ 93,052,000	$ 89,247,000	$ 69,389,000
Net intersegment revenues									0	0	0
Net interest and dividend revenue									2,183,000	1,191,000	266,000
Other revenue									1,669,000	534,000	(708,000)
Total revenues	$ 20,456,000	$ 15,406,000	$ 15,603,000	$ 17,216,000	$ 19,391,000	$ 17,860,000	$ 17,484,000	$ 18,319,000	94,721,000	89,781,000	68,681,000
Expenses:
Total expenses									93,891,000	83,776,000	73,554,000
Income (loss) before income taxes	(4,313,000)	(1,021,000)	(458,000)	594,000	3,213,000	2,360,000	1,416,000	7,014,000	4,015,000	13,443,000	(5,195,000)
Income tax provision									1,804,000	2,872,000	(567,000)
Interest Income, Interest-Earning Asset									1,636,000	860,000	414,000
Net loss	(3,125,000)	$ (1,175,000)	$ (378,000)	$ 50,000	2,813,000	$ 1,879,000	$ 970,000	$ 4,101,000	2,211,000	10,571,000	(4,628,000)
Restricted stock expense									5,537,000	6,518,000	6,001,000
Amortization of intangible assets									4,148,000	4,149,000	1,889,000
Deferred taxes on goodwill									(885,000)	(876,000)
Assets	149,989,000				155,167,000				149,989,000	155,167,000	146,427,000
Segment goodwill	39,501,000				39,501,000				39,501,000	39,501,000	35,732,000
Equity Method Investments	4,250,000				4,284,000				4,250,000	4,284,000	6,574,000
Expenditures for long-lived assets									109,000	147,000	320,000
Unrealized Gain (Loss) on Investments									0	6,000	(1,495,000)
Other Income									1,002,000	6,241,000	907,000
General and Administrative Expense [Member]
Expenses:
Amortization of intangible assets									4,100,000	4,100,000	1,900,000
Operating Segments | Advisory [Member]
Segment Reporting Information [Line Items]
Revenue From External Sources									71,148,000	68,656,000	47,703,000
Net intersegment revenues									5,959,000	6,270,000	2,080,000
Other revenue									1,669,000	534,000	(708,000)
Total revenues									78,776,000	75,460,000	49,075,000
Expenses:
Interest Income, Interest-Earning Asset									1,146,000	518,000	301,000
Net loss									17,605,000	14,636,000	11,062,000
Assets	309,418,000				285,179,000				309,418,000	285,179,000	283,027,000
Segment goodwill	23,100,000				23,100,000				23,100,000	23,100,000	19,331,000
Equity Method Investments	4,250,000				4,284,000				4,250,000	4,284,000	6,574,000
Expenditures for long-lived assets									15,000	135,000	137,000
Operating Segments | Trust [Member]
Segment Reporting Information [Line Items]
Revenue From External Sources									21,904,000	20,591,000	21,686,000
Net intersegment revenues									186,000	279,000	336,000
Other revenue									0	0	0
Total revenues									22,090,000	20,870,000	22,022,000
Expenses:
Interest Income, Interest-Earning Asset									490,000	342,000	113,000
Net loss									2,751,000	1,776,000	1,005,000
Assets	46,438,000				46,754,000				46,438,000	46,754,000	53,644,000
Segment goodwill	16,401,000				16,401,000				16,401,000	16,401,000	16,401,000
Equity Method Investments	0				0				0	0	0
Expenditures for long-lived assets									75,000	94,000	84,000
Westwood Holdings
Segment Reporting Information [Line Items]
Revenue From External Sources									0	0	0
Net intersegment revenues									0	0	0
Other revenue									0	0	0
Total revenues									0	0	0
Expenses:
Interest Income, Interest-Earning Asset									0	0	0
Net loss									(18,124,000)	(5,841,000)	(16,695,000)
Assets	14,516,000				14,256,000				14,516,000	14,256,000	30,308,000
Segment goodwill	0				0				0	0	0
Equity Method Investments	0				0				0	0	0
Expenditures for long-lived assets									19,000	(82,000)	99,000
Eliminations
Segment Reporting Information [Line Items]
Revenue From External Sources									0	0	0
Net intersegment revenues									(6,145,000)	(6,549,000)	(2,416,000)
Other revenue									0	0	0
Total revenues									(6,145,000)	(6,549,000)	(2,416,000)
Expenses:
Interest Income, Interest-Earning Asset									0	0	0
Net loss									(21,000)	0	0
Assets	(220,383,000)				(191,022,000)				(220,383,000)	(191,022,000)	(220,552,000)
Segment goodwill	0				0				0	0	0
Equity Method Investments	$ 0				$ 0				0	0	0
Expenditures for long-lived assets									$ 0	$ 0	$ 0